Audi Q7 2007 Repair Manual page 306

Audi Q7 2007 ➤
Heating, Ventilation and Air Conditioning - Edition 04.2013
– Remove air ducts to footwell vents -A- and -B-.
Note
Versions of footwell vents -A- and -B- vary on vehicles with and
without rear A/C unit, this illustration shows the version on vehi‐
cles with rear A/C unit. Refer to
⇒ "12 Air Ducts in and to Front and Rear A/C Unit", page 205
– Remove condensation water drain hose from the A/C unit.
Refer to
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
⇒ "9.37 Front Condensation Water Drain Hose, Checking, Re‐
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
moving and Installing", page 171
with respect to the correctness of information in this document. Copyright by AUDI AG.
– Mark the installation position of washers of hex nuts -C- on
plenum chamber rear wall, for example using a waterproof
marker.
– Remove hex nuts with washer -C-
Note
A rubber base -D- is glued on to washer of hex nuts -C- as a seal.
– Check fit of the caps -A- and -B- on connections to evaporator,
they must fit securely so that the connections are not damaged
when removing the A/C unit.
– Disconnect harness connector -A-.
– Disengage bracket for wiring harness -B- from the A/C unit
-D-.
– Release the remaining wiring harness fasteners on A/C unit
-D- (for example, cable ties -C-).
Note
From MY 2009, certain vehicles with a 6-cylinder TDI engine
without an "auxiliary heater", have an Auxiliary Heater Heating
Element - Z35- instead of a fuel-driven auxiliary heater installed
depending on the emissions standard (running change depend‐
ing on the engine). Refer to the Audi Sales Program and ⇒
Parking/Auxiliary Heater; Rep. Gr. 82 . Loosen the respective
wire connections for vehicles with an Auxiliary Heater Heating El‐
ement - Z35- . Refer to
⇒ "9.19 Auxiliary Heater Heating Element Z35 , Removing and
Installing", page 140 .
– Remove the A/C unit -A- from vehicle in direction of front pas‐
senger side.
17.1.3 Front A/C Unit, Installing
Special tools and workshop equipment required
♦ Hose Clamps - Up To 25 mm - 3094-
♦ Compressed air gun, commercially available
♦ Cooling System Tester - VAG1274- (and corresponding
adapter)
Install in reverse order of removal. Note the following:
300
Rep. Gr.87 - Air Conditioning
.
.